• Korean journal of communication and information
• /
• v.27
• /
• pp.247-282
• /
• 2004

The purpose of this study is to examine the mobile phone service usage patterns of Korean teenagers and their motivation to use it, and to explore the relationships between the teenagers' social-psychological characteristics and their trails of mobile phone usage. After reviewing prior theoretical studios, three hypotheses regarding the research questions shown above were generated. Questionnaire study was conducted with 400 high school students in Busan and Ulsan metropolitan areas. They were to answer three categories of questions, such as frequencies of voice calls and text messaging services and the other mobile services, questions asking their social-psychological characteristics, and their motivations for using mobile phone services. Findings show that the teenagers more likely to tend to use voice calls when communicating family members. They tend to avoid those services with high rate of use as multimedia, game, and broadcasting services via mobile phones. The teenagers use mobile phone services for the similar purposes to conventional telephone uses. Therefore, the classical theories showing the alternative purposes or motivations to use conventional telephone usage, which divided the main purposes for phone uses in to two; work/instrumental and socializing/entertaining, proved to be reasonable. The cheap messaging services with texts are popular among the teenagers and are used for socializing/entertaining purposes rather than instrumental/functional purposes. In addition, the teenagers' social-psychological characteristicss are significantly associated with the amount of mobile phone uses. A characteristic of "individual-centeredness" is positively related with non-voice service uses, while "group-centeredness" explains heavy amount of using voice calls and text messaging services. Such characteristics as "immediacy," "directness," "innovativeness," and "other-direction" are positively associated with the frequencies and amounts of mobile phone uses, while "inner-direction" and "tradition-direction" are negatively correlated.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
• /
• 2001.05a
• /
• pp.6-9
• /
• 2001

집중도를 평가하기 위하여 피험자에게 집중을 유발시키는 3가지 task(단기기억작업, Corsi block tapping task, visuomotor task)를 부가하고 주관평가 및 생리신호(뇌파, 심전도, 맥파, 피부온도, 호흡, 피부전도도)를 측정하였다. 뇌파를 mapping하여 평가에 적합한 전극이 위치를 선정하고, task 수행중 집중도 변화와 짐전도의 심박변화와의 관계를 분석하였다. 분석결과 안정과 task 수행시 뇌파 mapping상 전체 power의 변호가 frontal 부분에서 크게 나타났으며, 집중시 R-R 간격의 순간간격변화가 줄어들었다.

• 월간 기계설비
• /
• no.7 s.216
• /
• pp.52-55
• /
• 2008

공정거래위원회가 건설기계임대차 분야에 있어서 불평등한 계약관행을 개선하고 공정한 거래질서를 확립하기 위해 최근 "건설기계임대차 표준계약서"를 제정했다. 이에 따라 국토부는 지난 6월 10일 산하 공공기관 관계자 등과 간담회를 갖고 표준약관으로 제정된 건설기계임대차 표준계약서가 공사대장의 작성.비치.관리와 함께 공사현장에서 널리 사용, 정착되어 건설공사의 투명성이 제고될 수 있도록 적극적인 협조를 당부했다. 이번에 제정된 건설기계임대차 표준계약서는 지난 해 대한설비건설협회를 비롯한 4개 단체와 국토해양부가 협의를 거쳐 공정위에 건설기계임대차 표준계약서 표준 약관을 공정위에 심사, 청구한 것을 공정위가 승인한 것이다.

• Proceedings of the Korea Multimedia Society Conference
• /
• 2001.11a
• /
• pp.607-610
• /
• 2001

기존의 전자책 환경에서 종이책과 구별되는 특징은 네트웍을 통한 저자와 독자, 출판사간의 인터랙티브(interactive)한 정보 교환이 가능하다는 점이다. 이러한 교환은 기존의 종이책에서 사용하는 Annotation을 이용하면 가능하다. Annotation이란 원본 문서에 부가적으로 추가되는 정보를 의미한다. 그러므로 Annotation과 원본 문서는 밀접한 관계를 갖는데 기존의 Annotation 모델링은 원본 문서를 고려하지 않고 Annotation만을 별개로 모델링하였다. 이에 본 논문에서는 Annotation을 보다 효과적으로 활용하기 위하여 annotation과 원본 문서를 동시에 표현하는 모델링에 대해 제안한다. 그리고 본 모델링은 전자책 표준인 EBKS에 기반하며, 모델링 결과를 웹 자원을 기술하는 표준인 RDF를 이용하여 표현한다.

• Broadcasting and Media Magazine
• /
• v.4 no.3
• /
• pp.19-32
• /
• 1999

디지털 AV 처리 기술에 대한 연구가 1990년대에 들어 MPEG국제표준화 활동에 의하여 결집되고 본격적인 응용분야에 이용되기 시작한 이래로 디지털 방송은 MPEG과는 뗄 수 없는 관계가 되었다 본 고에서는 MPEG-2를 기반으로 한 기본적인 디지털 방송 및 부가데이터 서비스를 위하여 필요한 기술들을 살펴보고, 최근 1차적인 표준화 작업이 완료된 MPEG-4를 이용한 대화형 방송서비스 기술 개발 현황과 새롭게 표준화 활동이 시작된 MPEG-7 기술의 방송 응용에 대하여 살펴보기로 한다.

• Proceedings of the Korean Institute of Industrial Safety Conference
• /
• 2002.05a
• /
• pp.481-485
• /
• 2002

사업장의 자율적인 안전보건경영체제를 구축할 수 있도록 지원하기 위해 한국산업안전공단과 안전관리부가 주관이 되어 관련 교육과 기술지원을 실시하고 그 결과를 객관적으로 평가하여 일정기준 이상 도달되었을 때 ［건설업 KOSHA 2000 프로그램］ 인증을 획득하고 안전보건 경영체제를 지속적으로 유지하기 위해 사후 지원하도록 한 프로그램이다. 그 추진배경으로는 기존 안전보건 활동의 한계성, 재해율 절감의 한계성, 새로운 시스템 즉 자율적, 능동적 시스템의 도입 필요, 체계적, 합리적, 유기적인 관계 선상에서 관리 필요 등이다.(중략)

• Journal of dental hygiene science
• /
• v.6 no.4
• /
• pp.231-235
• /
• 2006

This study evaluated the properties of polyvinylsiloxane impression materials: Strain-in-compression, Elastic recovery, Consistency, and Wettability. Four polyvinylsiloxane impression materials(Examixfine, GC, Japan; Aquasilultra, Dentsply, USA; Extrude, Kerr, USA; Perfect-F, Handae, Korea) were used in this study. The measured data were analyzed with SPSSWIN 12.0 program. The results were as follows : 1. The strain-in-compression values showed that Extrude had the lowest value, 4.86% and Examixfine had the highest value, 6.78%. Significant difference between Examixfine and Perfect-F was not found but the other groups had significant differences(p = 0.000). 2. In the elastic recovery test, Extrude had the highest, 99.83% and Perfect-F had the lowest, 96.54%. There is no significant difference between Examixfine and Aquasilultra. The other impression material groups showed significant differences(p = 0.000). 3. The measurement of consistency results that the diameter of Examixfine was the largest, 45.12mm and one of Perfect-F was the smallest, 40.28 mm. No differences were shown between Examixfine and Aquasilultra and between Extrude and Perfect-F(p = 0.001). 4. Aquasilultra had a better hydrophilicity($47.85^{\circ}$) than other materials. Perfect-F had a larger contact angle($94.89^{\circ}$) and was hydrophobic. There were significant differences between groups(p = 0.000). 5. As for correlation among the test types, contact angle correlated with strain-in-compression, elstic recovery and consistency. The strain-in-compression had correlation to contact angle and elastic recovery. The elastic recovery correlated with contact angle and strain-in-compression. And the consistency had correlation to contact angle.

• Journal of Convergence for Information Technology
• /
• v.12 no.1
• /
• pp.55-65
• /
• 2022

This study examines the relationship between customer experience, customer-influencer relationship quality, and customer behaviors. This study employed questionnaire survey and collected 413 data. The structural equation modeling (SEM) method is used to test the hypotheses of the study. As a result of the study, it was found that among customer experiences, emotional experience had a greater effect on hot IRQ than cold IRQ, and cognitive experience had a greater effect on cold IRQ than hot IRQ. And it was found that hot IRQ had a greater effect on relationship retention intention than recommendation intention, and cold IRQ had a greater effect on recommendation intention than relationship maintenance intention. This study provides various implications both theoretically and practically by examining the relationship quality between customers and influencers.

• The Journal of the Korea Contents Association
• /
• v.21 no.1
• /
• pp.579-589
• /
• 2021

The study is to verify the mediating effect of self-compassion in the relationship between abandonment anxiety and relationship addiction. To this end, a questionnaire survey was conducted on 250 men and women in early adulthood, using the scales of abandonment anxiety, self-compassion, and relationship addiction, of which 237 were used for the final analysis. Descriptive statistics and correlation analysis were performed using the SPSS 21.0 program, and mediating effects were confirmed using the PROCESS macro. The results of the study are as follows. First, abandonment anxiety showed negative correlation with self-compassion, and positive correlation with relationship addiction. Self-compassion showed negative correlation with relationship addiction. Second, in the relationship between abandonment anxiety and relationship addiction, self-compassion showed a partial mediating effect. Through this study, the relationship between abandonment anxiety and relationship addiction and the effectiveness of self-compassion to manage it were confirmed. Based on the results of this study, the significance and limitations of this study and suggestions for subsequent studies were presented.

• The Korean Journal of Applied Statistics
• /
• v.13 no.2
• /
• pp.265-274
• /
• 2000

Relationship between the daily mortality and total suspended particulate(TSP) for the period of 1996-1997 was examined in Seoul, Korea. Generalized additive model was adapted for the analysis to allow the seasonality and long-term time effect in the air pollution and the nonlinear relationships with weather variables such as air temperature and relative humidity. An increase of 100 Ji9/m') TSP corresponds to 0.8-5.2 percent increase of the daily mortality Unidirectional (prospective and retrospective) case-crossover design results in large bias of the estimates. Bidirectional method gives relatively unbiased estimates but the standard errors are larger Case-crossover design should be used with caution in the situation where the data have seasonal trends like air pollution study.